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參數(shù)資料
| 型號： | DS1284QN |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Timer or RTC |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PQCC28 |
| 封裝： | 0.452 INCH, PLASTIC, LCC-28 |
| 文件頁數(shù)： | 13/18頁 |
| 文件大小： | 299K |
| 代理商： | DS1284QN |
DS1284/DS1286
4 of 18
PIN
DIP
EDIP
PLCC
NAME
FUNCTION
28
VCC
Primary Power-Supply Input. When voltage is applied within
normal limits, the device is fully accessible and data can be
written and read. When a backup supply is connected to the
device and VCC is below VTP, read and writes are inhibited.
However, the timekeeping function continues unaffected by the
lower input voltage.
Figure 1. Block Diagram
Internal Registers
Internal Counters
Internal Registers
Oscillator
8
40.96
PF delay
10
Update seconds through
years and check time of
day alarm
User RAM
50 Bytes
Command
Register
External Registers,
clock, calendar,
time of day alarm
A
ddress
Decode
and
Cont
rol
Power
Switch
4
Swap
pins
External
Registers
Hundredths of
Seconds
External
Registers
Watchdog Alarm
Internal Counters
Data I/O Buffers
A0-A5
CE
OE
WE
V
CC
V
BAT
SQW
INTA
INTB/
(INTB)
1024Hz
TD INT
WD INT
DS1286
only
100Hz
DS1286 only
GND
DQ0–DQ7
DS1284/DS1286
X1
X2
P
N
V
CC
IBH
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1284QN/T&R | 制造商:Maxim Integrated Products 功能描述:IC TIMEKEEPER WATCHDG IND 28PLCC |
| DS1284QN/T&R | 功能描述:實時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1284QN+ | 功能描述:實時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1284QN+T&R | 制造商:Maxim Integrated Products 功能描述:IC TIMEKEEPER WATCHDG IND 28PLCC |
| DS1284QN+T&R | 功能描述:實時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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